<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品分类</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary"  @click="addCate"> 添加分类</el-button>
          <tree-table class="treelabe"
            :data="cateList"
            :columns="columns"
            :show-index="true"
            :selection-type="false"
            :expand-type="false"
          >
            <template slot="isok" slot-scope="scope">
              <i
                class="el-icon-success"
                v-if="scope.row.cat_deleted == false"
                style="color:lightgreen"
              ></i>
              <i class="el-icon-error" v-else style="color:red"></i>
            </template>
            <template slot="order" slot-scope="scope">
              <el-tag size="mini" v-if="scope.row.cat_level===0">一级</el-tag>
              <el-tag type="success" size="mini" v-else-if="scope.row.cat_level===1">二级</el-tag>
              <el-tag type="warning" size="mini" v-else>三级</el-tag>
            </template>
            <template slot="opt" slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" circle size="mini" ></el-button>
            <el-button type="danger" icon="el-icon-delete" circle size="mini" ></el-button>
            </template>
          </tree-table>
          <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="querInfo.pagenum"
      :page-sizes="[3, 5, 10, 15]"
      :page-size="querInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
        </el-col>
      </el-row>
    </el-card>
    <el-dialog
  title="添加分类"
  :visible.sync="addCatedialogVisible"
  width="50%"
  >
  <el-form :model="addCateForm" :rules="addCateFormrules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
  <el-form-item label="分类名称：" prop="cat_name">
    <el-input v-model="addCateForm.cat_name"></el-input>
  </el-form-item>
  <el-form-item label="父级分类：">
  <el-cascader
    clearable
    change-on-select
    v-model="selectKey"
    :options="parentCateList"
    :props="cascaderPorops"
    @change="prentCateChange"></el-cascader>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="addCatedialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addCateInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      querInfo: {
        type: 3,
        pagenum: 1,
        pagesize:5 ,
      },
      // 商品分类数据列表
      cateList: [],
      total: 0,
      columns: [
        {
          label: "分类名称",
          prop: "cat_name",
        },
        {
          label: "是否有效",
          type: "template",
          template: "isok",
        },
        {
          label: "排序",
          type: "template",
          template: "order",
        },
         {
          label: "操作",
          type: "template",
          template: "opt",
        },
        
      ],
      addCatedialogVisible :false,
      addCateForm:{
          cat_name:'',
          cat_pid:0,
        //   默认一级分类
          cat_level:0
      },
      addCateFormrules:{
          cat_name:[
          { required: true, message: "请输入角色名", trigger: "blur" },
          ]
      },
      parentCateList:[],
      cascaderPorops:{
          value:'cat_id',
          label:'cat_name',
          children:'children'
      },
      selectKey:[]
    };
  },
  created() {
    this.getCateList();
  },
  methods: {
    async getCateList() {
      var { data: resp } = await this.$http.get("categories", {
        params: this.querInfo,
      });
      if (resp.meta.status !== 200) {
        return this.$message.error("获取失败");
      }
      console.log(resp.data);
      this.cateList = resp.data.result;
      this.total = resp.data.total;
    },
    handleSizeChange(newSize){
     this.querInfo.pagesize=newSize
     this.getCateList()
    },
    handleCurrentChange(newpage){
        this.querInfo.pagenum= newpage
        this.getCateList()
    },
    addCate(){
        this.getParentCate(),
      this.addCatedialogVisible = true;
    },
    //获取父级分类
     async getParentCate(){
     var {data:resp}= await  this.$http.get('categories',{params:{type:2}})
     if (resp.meta.status !== 200) {
        return this.$message.error("获取失败");
      }
      this.parentCateList=resp.data
    },
    prentCateChange(){ 
        //判断是否选择 
        if (this.selectKey.length > 0) {
           this.addCateForm.cat_pid= this.selectKey[this.selectKey.length -1]
           this.addCateForm.cat_level= this.selectKey.length
           return
        }else{
             this.addCateForm.cat_pid= 0
             this.addCateForm.cat_level= 0
        }
    },
    addCateInfo(){
    
      this.$refs.ruleForm.validate(async val => {
        if(!val) return
        var{data:resp} =await this.$http.post('categories',this.addCateForm)
        if (resp.meta.status !== 201) {
        return this.$message.error("添加商品失败");
      }
       this.$message.success("添加商品成功");
       this.getCateList()
       this.addCatedialogVisible=false
      })
    }
  },
};
</script>

<style lang="less" scoped>
.treelabe{
    margin-top: 15px;
}
</style>
